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5 Written questions

5 Matching questions

  1. Fireworks are also known as
  2. Activation energy
  3. Enzymes
  4. Catalyst
  5. Coeffecient
  1. a Aerial shells/charges
  2. b A material that increases the rate of a reaction by lowering the activation energy
  3. c The minimum amount of energy needed to start a chemical reaction
  4. d proteins that act as biological catalysts and lower the activation energy of reactions in cells
  5. e The number placed in front of a chemical formula in an equation

5 Multiple choice questions

  1. A Characteristic of a substance that describes its ability to change into another substance
  2. A material used to decrease the rate of a reaction
  3. Anything that has mass and takes up space
  4. Matter can enter or escape to the surroundings
  5. A material that releases energy when it burns

5 True/False questions

  1. ChemistryThe study of matter and how matter changes


  2. Endothermic ReactionA Reaction that releases energy in the form of heat


  3. The Basic ingredient in a FireworkStar Pellet


  4. SynthesisAnything that has mass and takes up space


  5. Conservation of MassThe amount of a substance in a given volume